ABSTRACT
The Mongol invasion of Koryo began in 1231 and continued for almost 30 years. Soldiers and ordinary peasants continued to fight the Mongol troops on the mainland. The Mongol invasions continued until 1259, when Koryo finally surrendered. The Koryo government experienced interference in its politics and diplomacy throughout the 13th and 14th centuries. Eventually, the Koryo government even devised a narrative arguing that what they were asking was only what had been approved and authorized by past Mongol emperors, as we can see from the case of King Kongmin. The Mongols did not exactly oppress the Koryo but instead forced certain rules upon the Koryo government and, by extension, over ordinary people as well. In the early days, the Koryo regarded the Mongols as nothing but predators.
